APFIVE Electric Field from Electric Potential
In a region of space, the electric potential varies according to $$V = 5x^2 - 3y^2 + 2z$$ (in volts, with coordinates in meters). What is the magnitude of the electric field at point (1, 2, 3)?
A
12.4 V/m
B
10.0 V/m
C
16.9 V/m
D
22.0 V/m
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